Can I pick my own songs for Shahid, The Wedding Singer to perform?

Yes, you can.
We normally discuss the Music Playlist and Itinerary a few weeks before the special day. Shahid already sings a wide variety of popular songs but if there’s certain songs that you want him to perform on the day then that would be fine, as long as;
(i) the song is suitable for him to sing.
(i) there’s enough time for him to rehearse it.
Please be aware that some songs may not be possible or suitable for him to sing for reasons that will be explained to you, but we do try our level best.
If Shahid cannot sing any song you choose then the option is still there for us to play the original track instead.